package filter;

import java.io.IOException;

import javax.servlet.Filter;
import javax.servlet.FilterChain;
import javax.servlet.FilterConfig;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

public class CharsetFilter implements Filter {
	
	private String encode = "UTF-8";// 默认UTF-8编码

	public void init(FilterConfig filterConfig) throws ServletException {
	}
	
	public void destroy() {
	}

	public void doFilter(ServletRequest req, ServletResponse resp, FilterChain chain) throws IOException, ServletException {
		HttpServletRequest request = (HttpServletRequest) req;
		HttpServletResponse response = (HttpServletResponse) resp;

		request.setCharacterEncoding(encode);
		response.setContentType("text/html;charset=" + encode);
		response.setCharacterEncoding(encode);
		chain.doFilter(request, response);
	}

}
